21201341194 has 32 divisors (see below), whose sum is σ = 35361722880. Its totient is φ = 9451993200.

The previous prime is 21201341191. The next prime is 21201341267. The reversal of 21201341194 is 49114310212.

It is not an unprimeable number, because it can be changed into a prime (21201341191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 556579 + ... + 593449.

It is an arithmetic number, because the mean of its divisors is an integer number (1105053840).

Almost surely, 2^21201341194 is an apocalyptic number.

21201341194 is a deficient number, since it is larger than the sum of its proper divisors (14160381686).

21201341194 is a wasteful number, since it uses less digits than its factorization.

21201341194 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37386.

The product of its (nonzero) digits is 1728, while the sum is 28.

The spelling of 21201341194 in words is "twenty-one billion, two hundred one million, three hundred forty-one thousand, one hundred ninety-four".